| 4种新烟碱类杀虫剂对马铃薯甲虫的触杀毒力比较 |
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| 引用本文： | 卢伟平,刘萍,姜卫华,李国清. 4种新烟碱类杀虫剂对马铃薯甲虫的触杀毒力比较[J]. 农药, 2011, 50(2) |
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| 作者姓名： | 卢伟平 刘萍 姜卫华 李国清 |
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| 作者单位： | 南京农业大学昆虫系农业部病虫害监测与治理重点开放实验室,南京21009s |
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| 基金项目： | 公益性行业科研专项基金项目(200803024) |
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| 摘 要： | [目的]马铃薯甲虫已在北疆为害近20年,多年的化学防治使其对常规农药产生了抗药性,寻找替代农药品种变得十分迫切与必要。[方法]采用点滴法于2009、2010年测定了4种新烟碱类杀虫剂对新疆北疆6县市马铃薯甲虫4龄幼虫的触杀毒力。[结果]4种新烟碱类杀虫剂对这些田间种群均具有很好的毒杀效果,吡虫啉、噻虫嗪、噻虫啉和啶虫脒相对毒力比为1∶0.87∶1.90∶7.20,其中啶虫脒的毒力最强而噻虫嗪最弱。[结论]4种新烟碱类农药对马铃薯甲虫4龄幼虫触杀毒力的差异与其田间种群对常规农药的抗性无关,可用于马铃薯甲虫防治及抗药性治理。
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| 关 键 词： | 马铃薯甲虫 毒力回归曲线 新烟碱类 触杀毒力 |
Comparison of Contact Toxicities of 4 Neonicotinoids against Leptinotarsa decemlineata |
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| LU Wei-ping,LIU Ping,JIANG Wei-hua,LI Guo-qing. Comparison of Contact Toxicities of 4 Neonicotinoids against Leptinotarsa decemlineata[J]. Pesticides, 2011, 50(2) |
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| Authors: | LU Wei-ping LIU Ping JIANG Wei-hua LI Guo-qing |
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| Affiliation: | LU Wei-ping,LIU Ping,JIANG Wei-hua,LI Guo-qing(Department of Entomology,Nanjing Agricultural University,Key Laboratory of Monitoring and Management of Plant Diseases and Pests,Ministry of Agriculture,Nanjing 210095,China) |
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| Abstract: | [Aims]Colorado potato beetle,Leptinotarsa decemlineata(Say) has often caused serious damage to potato through most of northern Xinjiang for nearly two decades.Since this pest has developed insecticide resistance to some conventional pesticides,it is urgent and necessary to search for new insecticides.[Methods] Contact toxicities of 4 neonicotinoids,namely imidacloprid,thiamethoxam,thiacloprid and acetamiprid,on 6 field populations of L.decemlineata 4th-instar larvae in northern Xinjiang Uygur autonomous reg... |
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| Keywords: | Leptinotarsa decemlineata LD-P line neonicotinoids contact toxicity |
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